JPS5290919A - Thin film magnetic head for high density recording - Google Patents

Thin film magnetic head for high density recording

Info

Publication number
JPS5290919A
JPS5290919A JP738676A JP738676A JPS5290919A JP S5290919 A JPS5290919 A JP S5290919A JP 738676 A JP738676 A JP 738676A JP 738676 A JP738676 A JP 738676A JP S5290919 A JPS5290919 A JP S5290919A
Authority
JP
Japan
Prior art keywords
thin film
high density
magnetic head
film magnetic
density recording
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP738676A
Other languages
Japanese (ja)
Inventor
Tomoyuki Toshima
Keiichi Yanagisawa
Kyosuke Yasuda
Takuji Nakanishi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP738676A priority Critical patent/JPS5290919A/en
Publication of JPS5290919A publication Critical patent/JPS5290919A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3109—Details
    • G11B5/3113—Details for improving the magnetic domain structure or avoiding the formation or displacement of undesirable magnetic domains
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/127—Structure or manufacture of heads, e.g. inductive
    • G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
    • G11B5/3109—Details
    • G11B5/3116—Shaping of layers, poles or gaps for improving the form of the electrical signal transduced, e.g. for shielding, contour effect, equalizing, side flux fringing, cross talk reduction between heads or between heads and information tracks

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Magnetic Heads (AREA)

Abstract

PURPOSE:To provide long-term stability and high recording and reproducing efficiency by making an upper magnetic body laterally oblong in shape and providing a protrusion of a track width length.
JP738676A 1976-01-26 1976-01-26 Thin film magnetic head for high density recording Pending JPS5290919A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP738676A JPS5290919A (en) 1976-01-26 1976-01-26 Thin film magnetic head for high density recording

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP738676A JPS5290919A (en) 1976-01-26 1976-01-26 Thin film magnetic head for high density recording

Publications (1)

Publication Number Publication Date
JPS5290919A true JPS5290919A (en) 1977-07-30

Family

ID=11664482

Family Applications (1)

Application Number Title Priority Date Filing Date
JP738676A Pending JPS5290919A (en) 1976-01-26 1976-01-26 Thin film magnetic head for high density recording

Country Status (1)

Country Link
JP (1) JPS5290919A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2502375A1 (en) * 1981-03-20 1982-09-24 Cii Honeywell Bull VERY HIGH DENSITY MAGNETORESISTING INFORMATION READER TRANSDUCER

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5214410A (en) * 1975-07-23 1977-02-03 Fujitsu Ltd Film magnetic head

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5214410A (en) * 1975-07-23 1977-02-03 Fujitsu Ltd Film magnetic head

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2502375A1 (en) * 1981-03-20 1982-09-24 Cii Honeywell Bull VERY HIGH DENSITY MAGNETORESISTING INFORMATION READER TRANSDUCER
US4488194A (en) * 1981-03-20 1984-12-11 Compagnie Internationale Pour L'informatique Cii-Honeywell Bull Magnetoresistant transducer for reading very high-density data

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